National Geographic : 2014 Feb
NEXT photo (top): John Weinstein, Field MuseuM. source: lance Grande, The LosT WorLd of fossiL Lake. photo (BottoM): Visual deVelopMent laB, McMaster uniVersity. Graphic: MarGaret nG. art (top): ÁlVaro ValiÑo. source: aMadeus Early Bird there’s a new branch on the avian family tree. a 50-million-year-old fossilized bird found in Wyoming is thought to be an extinct cousin of modern hummingbirds and swifts. Based on the fossil’s well-preserved plumage, paleontologist daniel Ksepka believes eocypselus rowei—four inches from head to tail—would have been a conventional flier. its descendants’ feathers specialized, growing long so swifts could stay aloft all day and short so hum- mingbirds could hover. —Catherine Zuckerman The discovery of this fossil helps explain the evolution of swifts and humming- birds in North America. EyE spy dots represent instances—observed over the course of five seconds—when each gender fixated on a facial feature. Face-to-Face Women have long been shown to be better than men at remem- bering faces. New research from Canada’s McMaster University helps explain why. Kinesiologist Jennifer Heisz tracked the way men and women moved their eyes as they scanned pictures of faces (right). Both gen- ders started at the center and looked at the same features—eyes, nose, mouth—but wom- en made more eye movements between the features. “More frequent scanning generates a more vivid picture in your mind,” says Heisz. Understanding how the brain memorizes vi- sual information could lead to improvements in how memory loss is treated. —Daniel Stone Start Women 17 10 Men 1 0 seconds 2 3 4 5 Seoul Jeju the world’s busiest air route connects Jeju and seoul, south Korea. it saw 10.1 million passengers in 2012.